Spring-shackle



F. P. SAWDERS AND J. G. MURRAY. SPRI-NG SHACKLE. APPLICATION FILED DEC-2. l9l9.

1,352,633, PatentedSept. 14, 1920.

Inventors. 3hw AWN, M41

, anon/vu g- FRANK P. SAWDERS AND JAMES e. ivrunnam or -PITTSBURGH,- PENNSYLVANIA.

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Specification of Letters Patent. Patented Sept. 14, 1920.

Application filed December 2, 1919. Serial No. 341,951.

To all whom it may concern Be it known that we, FRANK SAwonRs and JAMES Gr. MURRAY, citizens of the United States, residing at Pittsburgh, in the county of Allegheny and State or Pennsylvania, have jointly invented a new and useful Improvement in Spring-Shackles, of

which improvement the following is a specification.

Our invention relates in particular to v shackles for the sprlngs of motor propelled struction and arrangement of parts as will be hereinafter more specifically described and particularly set forth in the appended claims. I

In the accompanying drawings we have shown an embodiment of our invention, wherein-' Figure 1 is a side elevation thereof and Fig. 2 an end elevation of the same partly in section on the line X-X of Fig. 1.

The device is in the term of a bifurcated -member, from the body portion 1 of which projects the branches or lugs 52 in parallel relation, which are adapted for the reception of the end of a suitable spring, said spring end to be looselymounted on and connected thereto by a suitable pin pass ing through the sprin g eye and lug openings 3. The extremities of these lugs are slitted and bolt holes 4: formed therethrough at,

right angles to said slits, said openings being intended for the reception of .bolts to secure the pins in place. The body portion oi the device is hollow, to form the oil reservoir leaving a space 5 at the lower end about the openings 6, within which openings is tightly fitted the sleeve bearing 8 having feed openings 9 therein, said body being disposed at an angle and projecting to one side, there being a threaded opening 7 in the top thereof for connecting an Oll cup or other lubricating supply means thereto.

The shackle being applied to the rod or pin upon which it operates, and the chamf forth, comprising a bifurcated ber filled witl the lubricant, which surrounds the bearingsleeve 8, it is evident that the bearing surface between the sleeve and rod or pin upon which it is supported, will be fully lubricated by the gravitating pressure oil. the lubricating booy in the chamber. fed theretothrough the ports 9. lly projecting the body of the shackle I i i angle it is then in a readily bechargcd.

Having thus shown and described our invention, what we claim is'- V 1. A spring shackle for the purpose set forth, comprising a bifurcated member the forked portion of which is adapted to rcceive the end of a spring, the body portion thereof below the fork being hollow to form a lubricating reservoir, and a bearing sleeve position where it may extending through thebase of said reservoir and adapted to lit over. a supporting member, said sleeve being provided thereabout i with spaced lee-d openings, said reservoir surrounding said sleeve and communicating therewith through said openings, the major portion of said reservoir being disposed above said sleeve so that a lubricant therein willhave a gravity feed through said openlngs. 1

2. A spring shackle for the purpose set "forked portion of which is adapted to receive the end of a. spring, the body portion thereof below the fork being hollow to form. a lubrication reservoir the upper portion of which projects from between the fork legs and provided with a charging opening, and a fixed bearing sleeve rextendinglthrough the base of said reservoir and adapted to fit over a supportin member, said sleeve being provided thereabout with spaced feed openings, said reservoir surrounding the sleeve and communicating therewith through openings, the major portion of said reservoir being disposed above said sleeve so that a lubricant therein will have a gravity feed through said openings.

In testimony whereof, we have hereunto signed our names in the presence of two subscribing witnesses.

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